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From "Mark Harwood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-2268) Add support for Point in Polygon searches
Date Tue, 07 Dec 2010 10:12:08 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12968662#action_12968662
] 

Mark Harwood commented on SOLR-2268:
------------------------------------

bq.I would propose the following format: vertices are separated by semi-colons, points are
separated by commas

The spatially enabled databases follow the  "Simple Features Specification for SQL" spec which
defines the ironically named "Well Known Text" format (WKT) for representing points polygons
etc
http://en.wikipedia.org/wiki/Well-known_text

bq. For PointType, we can just use capabilities of java.awt.Polygon

Using any AWT class can introduce issues related to servers and headless mode. I'd recommend
instead the JTS Java Topology Suite which has a lot of useful stuff - including WKT readers
and writers
http://goo.gl/IyNeD

> Add support for Point in Polygon searches
> -----------------------------------------
>
>                 Key: SOLR-2268
>                 URL: https://issues.apache.org/jira/browse/SOLR-2268
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>
> In spatial applications, it is common to ask whether a point is inside of a polygon.
 Solr could support two forms of this: 
> # A field contains a polygon and the user supplies a point.  If it does, the doc is returned.
 
> # A document contains a point and the user supplies a polygon.  If the point is in the
polygon, return the document
> With both of these case, it would be good to support the negative assertion, too.

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